DFAS Pro Version 1.0.1.6 Build 052

Test Results for Disk Imaging Tool – Federated Testing Suite

April 21, 2019

This report was prepared for the Department of Homeland Security (DHS) Science and Technology Directorate (S&T) by the Office of Law Enforcement Standards of the National Institute of Standards and Technology.

For additional information about ongoing DHS S&T cybersecurity projects, please visit the DHS Science and Technology Cyber Security Division Web site at http://www.dhs.gov/science-and-technology/cyber-security-division.

April 2019

Test Results for Disk Imaging Tool: DFAS Pro Version 1.0.1.6 Build 052

Federated Testing Suite for Disk Imaging

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Contents

Introduction 1 How to Read This Report 2Tool Description 3Testing Organization 3Results Summary 3Test Environment & Selected Cases 4

Selected Test Cases 4Test Result Details by Case 5

FT-DI-01 5Test Case Description 5Test Evaluation Criteria 5Test Case Results 5Case Summary 5

FT-DI-03 6Test Case Description 6Test Evaluation Criteria 6Test Case Results 6Case Summary 6

FT-DI-05 7Test Case Description 7Test Evaluation Criteria 7Test Case Results 7Case Summary 7

Appendix: Additional Details 8Test Drives and Partitions 8Test Case Admin Details 8Test Setup & Analysis Tool Versions 9

Introduction

The Computer Forensics Tool Testing (CFTT) program is a joint project of the Department of Homeland Security (DHS), the National Institute of Justice (NIJ), and the National Institute of Standards and Technology (NIST) Special Programs Office and Information Technology Laboratory (ITL). CFTT is supported by other organizations, including the Federal Bureau of Investigation, the U.S. Department of Defense Cyber Crime Center, U.S. Internal Revenue Service Criminal Investigation Division Electronic Crimes Program, and the U.S. Department of Homeland Security’s Bureau of Immigration and Customs Enforcement, U.S. Customs and Border Protection and U.S. Secret Service. The objective of the CFTT program is to provide measurable assurance to practitioners, researchers, and other applicable users that the tools used in computer forensics investigations provide accurate results. Accomplishing this requires the development of specifications and test methods for computer forensics tools and subsequent testing of specific tools against those specifications.

Test results provide the information necessary for developers to improve tools, users to make informed choices, and the legal community and others to understand the tools’ capabilities. The CFTT approach to testing computer forensics tools is based on well-recognized methodologies for conformance and quality testing. Interested parties in the computer forensics community can review and comment on the specifications and test methods posted on the CFTT Web site (https://www.cftt.nist.gov/).

This document reports the results from testing the disk imaging function of DFAS Pro Version 1.0.1.6 Build 052 using the CFTT Federated Testing Test Suite for Disk Imaging, Version 3.1.

Federated Testing is an expansion of the CFTT program to provide forensic investigators and labs with test materials for tool testing and to support shared test reports. The goal of Federated Testing is to help forensic investigators to test the tools that they use in their labs and to enable sharing of tool test results. CFTT’s Federated Testing Forensic Tool Testing Environment and included test suites can be downloaded from NIST's Federated Testing Home page, https://www.cftt.nist.gov/federated-testing.html, and used to test forensic tools. The results can be optionally shared with CFTT, reviewed by CFTT staff, and then shared with the community.

Test results from this and other tools can be found on DHS’s computer forensics web page, https://www.dhs.gov/science-and-technology/nist-cftt-reports.

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How to Read This Report

This report is organized into the following sections:

1. Tested Tool Description. The tool name, version, vendor information, and support environment version (e.g., operating system version) are listed.

2. Testing Organization. The name and contact information of the organization that performed the tests are listed.

3. Results Summary. This section identifies any significant anomalies observed in the test runs. This section provides a narrative of key findings identifying where the tool meets expectations and provides a summary of any ways the tool did not meet expectations. The section also provides any observations of interest about the tool or about testing the tool including any observed limitations or organization-imposed restrictions on tool use.

4. Test Environment. Description of hardware and software used in tool testing in sufficient detail to satisfy the testing organization's policy and requirements.

5. Test Result Details by Case. Automatically generated test results that identify anomalies. 6. Appendix: Additional Details. Additional administrative details for each test case such as,

who ran the test, when the test was run, computer used, etc.

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Federated Testing Test Results for Disk Imaging Tool: DFAS Pro Version 1.0.1.6 Build 052

Tests were Configured for the Following Write Block Scenarios:

Large (> 138GB) SATA drive with Tableau T35es connected to PC by USB interface USB drive with Tableau T8R2 connected to PC by USB interface SD card with Tableau T8R2 connected to PC by USB interface

Tool Description

Tool Name: DFAS Pro Tool Version: 1.0.1.6 Build 052 Operating System: Windows 7 Ultimate 64-bit

Vendor Contact:

Vendor name: Douzone BizonAddress: 130, Beodeul 1-gil, Namsan-myeon, Chuncheon-si,

Gangwon-do, South Korea Phone: +82-02-6233-2075Email: Duozone Bizon email address (forensic@douzone.com)WWW: D-Forensic Center (DFC) home page (http://www.dforensic.com)

Testing Organization

Organization conducting test: The Korea Convergence Security AssociationContact: President of the Association, Professor Hangbae Chang (+82-2-820-5538, Professor Hangbae Chang's email address (hbchang@cau.ac.kr)Report date: 26-OCT-2018

This test report was generated using CFTT's Federated Testing Forensic Tool Testing Environment, see NIST's Federated Testing Home page (https://www.cftt.nist.gov/federated-testing.html).

Results Summary

Except for the following anomalies, the tool functioned as expected and acquired each drive completely and accurately. For three of the tests, tests that involved the acquisition of physical devices (vs logical), the tool recorded the size of the acquired devices incorrectly in the tool-generated log files. For example, the tool recorded the size of the drive acquired in test FT-DI-01-USB as 15,342,075 sectors instead of 15,356,160 sectors.

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Test Environment & Selected Cases

Hardware: - Test/Analysis PC: MSI GS60 2QD - FT-LOGS USB: SanDisk Blade 4GB (S/N: 2004432083053400358F) - A1 Source Drive: WD Caviar Blue 320GB (S/N: WD-WCAV2F671357) - A2 Source Drive: Seagate Barracuda 1TB (S/N: Z1D5END1) - A3 Source Drive: Sony TINY Series USB Flash Drive 8GB (S/N: 9B3001305040022672) - A4 Source Media: SanDisk Ultra Micro SD Card 16GB (S/N: 7371ZR5AL6QE) - Destination Drive: WDC WD2003FZEX 2TB (S/N: WD-WCC5C6HUR1NR)

Operating System: Windows 7 Ultimate 64-bit

Write Blockers Used in TestingBlocker Model Firmware Version

Tableau T35es Aug 6 2010Tableau T8R2 Mar 9 2011

Selected Test Cases

This table presents a brief description of each test case that was performed.

Test Case StatusCase Description Status

FT-DI-01-SATA48

Acquire drive of a given type using a given write blocker connected to a computer with a given interface to an image file and compute selected hashes for the acquired data. Test the ability to read a given drive type accurately and correctly hash the data while creating an image file.

completed

FT-DI-01-USB

Acquire drive of a given type using a given write blocker connected to a computer with a given interface to an image file and compute selected hashes for the acquired data. Test the ability to read a given drive type accurately and correctly hash the data while creating an image file.

completed

FT-DI-03-SD

Acquire removable media of a given type using a given media reader connected to a computer with a given interface to an image file and compute selected hashes for the acquired data. Test the ability to read a given removable media type accurately and correctly hash the data while creating an image file.

completed

FT-DI-05-NTFS

Acquire partition of a given type to an image file and compute selected hashes for the acquired data. Test the ability to read a given partition type accurately and correctly hash the data while creating an image file.

completed

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Test Result Details by Case

This section presents test results grouped by function.

FT-DI-01

Test Case Description

Acquire drive of a given type using a given write blocker connected to a computer with a given interface to an image file and compute selected hashes for the acquired data. Test the ability to read a given drive type accurately and correctly hash the data while creating an image file.

This test can be repeated to test acquisition of multiple drive types. This test tests the ability of the tool to acquire a specific type of drive (the drive type tested is included in the test case name) to an image file using a specific write blocker (applies only to tools that are used with hardware write blockers) and a certain interface connection between the test computer and the write blocker. The write blocker used and the interface connection between the test computer and the write blocker are listed for each test case in the table below. Two tests are required to test ATA or SATA drives, one to test drives smaller than 138GB (ATA28 & SATA28: 28-bit addressing) and one to test larger drives (ATA48 & SATA48: 48-bit addressing).

Test Evaluation Criteria

The hash values computed by the tool should match the reference hash values computed for the source drive.

Test Case Results

The following table presents results for individual test cases.

Test Results for FT-DI-01 cases

Case Src Blocker (interface) Reference Hash vs Tool Hash

MD5 SHA1FT-DI-01-SATA48 a1 Tableau T35es (USB) match matchFT-DI-01-USB a3 Tableau T8R2 (USB) match match

Case Summary

The tool acquired the test drives completely and accurately but recorded the sizes of the acquired drives incorrectly. In test case FT-DI-01-SATA48 the tool incorrectly recorded the size of the acquired drive as 625,137,345 sectors instead of 625,142,448 sectors in the tool-generated log file. In test case FT-DI-01-USB the tool recorded the size of the acquired drive as 15,342,075 sectors instead of 15,356,160 sectors.

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FT-DI-03

Test Case Description

Acquire removable media of a given type using a given media reader connected to a computer with a given interface to an image file and compute selected hashes for the acquired data. Test the ability to read a given removable media type accurately and correctly hash the data while creating an image file.

This test can be repeated to test acquisition of multiple removable media types. This test tests the ability of the tool to acquire a specific type of removable media (the removable media type tested is included in the test case name) to an image file using a specific media reader which may also be a write blocker and a certain interface connection between the test computer and the media reader. The media reader used and the interface connection between the test computer and the media reader are listed for each test case in the table below.

Test Evaluation Criteria

The hash values computed by the tool should match the reference hash values computed for the source drive.

Test Case Results

The following table presents results for individual test cases.

Test Results for FT-DI-03 cases

Case Src Blocker (interface) Reference Hash vs Tool Hash

MD5 SHA1FT-DI-03-SD a4 Tableau T8R2 (USB) match match

Case Summary

The tool acquired the test media completely and accurately but recorded the size of the acquired media incorrectly. In test case FT-DI-03-SD the tool incorrectly recorded the size of the acquired media as 31,101,840 sectors instead of 31,116,288 sectors in the tool-generated log file.

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FT-DI-05

Test Case Description

Acquire partition of a given type to an image file and compute selected hashes for the acquired data. Test the ability to read a given partition type accurately and correctly hash the data while creating an image file.

Test Evaluation Criteria

The hash values computed by the tool should match the reference hash values computed for the source drive.

Test Case Results

The following table presents results for individual test cases.

Test Results for FT-DI-05 cases

Case Src Reference Hash vs Tool Hash

MD5 SHA1FT-DI-05-NTFS a2+1 match match

Case Summary

Results are as expected.

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Appendix: Additional Details

Test Drives and Partitions

The following table presents the state of each source object, drive or partition, including reference hashes and known content. Both drives and partitions are described in the table. Partitions are indicated in the Drive column by the notation [drive]+[partition number]. Where [drive] is the drive label and [partition number] is the partition number. For example, the first partition on drive A3 would be A3+1. The Type column records either the drive type, e.g. SATA, USB, etc., or the partition type, e.g., NTFS, FAT32, etc., depending on whether a drive or a partition is being described.

Test Drives

Drive Type Content Sectors MD5 SHA1 SHA256 SHA512

a1 sata known 625142448 (298GiB)* 96634 ... 88143 ... 21145 ... 242F7 ... a2+1 ntfs known 1953519616 (931GiB)* 35DD3 ... 76D42 ... 2BCB8 ... CD281 ... a2+1 NTFS-FS known 1953519609 (931GiB) 180E7 .. B9242 .. 7C5D3 .. 87FF6 .. a3 usb known 15356160 (7GiB) 59978 ... AF578 ... B519D ... B7CB1 ... a4 sd known 31116288 (14GiB) 38CD2 ... 74AE9 ... 36A2D ... EB2C1 ...

* Large 48-bit address drive

Test Case Admin Details

For each test run, the test computer, the tester, the source drive, the image file drive, the destination drive, and the date the test was run are listed.

Test Case Admin Details

Case User Host Blocker (PC interface) Src Image Dst Date

ft-di-01-sata48 DFC Testpc Tableau T35es (USB) a1 repository none Thu Sep 27 07:35:11

2018

ft-di-01-usb DFC Testpc Tableau T8R2 (USB) a3 repository none Thu Sep 27 07:53:29 2018

ft-di-03-sd DFC Testpc Tableau T8R2 (USB) a4 repository none Thu Sep 27 07:54:19 2018

ft-di-05-ntfs DFC Testpc Tableau T35es (USB) a2 repository none Thu Sep 27 07:39:36 2018

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Test Setup & Analysis Tool Versions

Version numbers of tools used are listed.

Setup & Analysis Tool Versionscftt-di Version 1.25 created 05/23/18 at 15:58:45diskwipe.c Linux Version 1.5 Created 03/20/13 at 14:23:34

Tool: @(#) ft-di-prt_test_report.py Version 1.24 created 05/23/18 at 16:08:06 OS: Linux Version 4.13.0-37-generic Federated Testing Version 3.1, released 5/25/2018